Oracle Error Message
ORA-24070: cannot upgrade queue table string while it is being downgraded
Reason for the Error
An attempt was made to upgrade a queue table, but a previous command to downgrade the queue table has not yet completed succesfully.
Solution
Complete the downgrade of the queue table by re-executing the DBMS_AQADM.MIGRATE_QUEUE_TABLE procedure. Then, upgrade the queue table.
